CN212519399U - Portable Bluetooth karaoke system - Google Patents
Portable Bluetooth karaoke system Download PDFInfo
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- CN212519399U CN212519399U CN202021097544.1U CN202021097544U CN212519399U CN 212519399 U CN212519399 U CN 212519399U CN 202021097544 U CN202021097544 U CN 202021097544U CN 212519399 U CN212519399 U CN 212519399U
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Abstract
The utility model discloses a portable bluetooth K sings system, including the host computer, and respectively with microphone interface, earphone interface and the control panel that the host computer is connected, the host computer be equipped with power management circuit, with the MCU chip that control panel connects, and respectively with effect DSP chip and bluetooth receiving module, its characterized in that the MCU chip is connected: the microphone is a capacitance type small-head microphone; the headset is a wired headset; the host is a neck hanging rope type host; the host, the capacitance type small microphone and the wired earphone are integrated to form a hand-free portable Bluetooth K song system; the host is also provided with a hook hole. The utility model can achieve the effect of singing K close to the singing practicing room, and can form a set of real hand-free portable Bluetooth singing K system, so that personal singing K is more comfortable and pleasant; can form a set of portable live broadcast system, can also form a set of sound external playing formula K sings system.
Description
Technical Field
The utility model relates to a K sings the system, especially relates to a portable bluetooth K sings system.
Background
The traditional karaoke mode needs to be completed by adopting professional audio equipment in a fixed place, so that a karaoke room needs to be reserved, extra time is spent, and higher cost needs to be paid. With the development of 4G, 5G technology and bluetooth technology, especially the enhancement of the functions of mobile phones, a self-entertainment and self-entertainment mobile phone karaoke system has been developed. Currently there are three major: one is to integrate the small sound box and the microphone, and wrap the small sound box outside the hand-held microphone. The volume and the weight are large, the handheld use for a long time is difficult, sound is played outside, other people are easily affected, the position and the size of a small sound box are limited, the sound effect of the sound played outside is poor, and the experience during the song K is poor; the other is to connect the earphone with the mobile phone in a wired or wireless way and directly record the voice by using the microphone of the mobile phone. The effect is poor, the mobile phone is required to be held by hands to be close to the mouth all the time, the lyric prompt on the mobile phone cannot be seen, and particularly, the earphone cannot hear the singing sound in the microphone, so that the field feeling is very poor when singing is performed; the other one is that the karaoke and live broadcasting are realized by a small sound card designed and used in a desk type, the volume and the weight are large, the connecting wires are more and complicated, and the requirement of portability cannot be met.
Disclosure of Invention
The utility model aims to provide a most genuine portable bluetooth K sings system to solve the problem that above-mentioned prior art exists.
For this, the utility model provides a portable bluetooth K sings system, including the host computer, and respectively with microphone interface, earphone interface and the control panel that the host computer is connected, the host computer be equipped with power management circuit, with the little the control Unit (Microcontroller Unit, the acronym is MCU) chip that control panel connects, and respectively with effect Digital Signal Processing (Digital Signal Processing, the acronym is DSP) chip and bluetooth receiving module that the MCU chip is connected.
The portable Bluetooth karaoke system is characterized in that:
the microphone is a capacitance type small-head microphone;
the headset is a wired headset;
the host is a neck sling type host, and the neck sling type host, the capacitance type mini-microphone and the wired earphone are integrated to form a hand-free portable Bluetooth K song system.
The host computer still is equipped with the couple hole for connect the hanging neck lifting rope, uses the bluetooth to connect, presss from both sides mini microphone in the collar or hangs at the mouth limit, and wired earphone connects into the ear, and the host computer is placed in the front through hanging neck lifting rope, can constitute one set of real handheld K sings system of exempting from.
Preferably, the present invention may also have the following technical features:
still include with the audio output interface that the host computer is connected, the host computer be equipped with audio output interface connection's audio output circuit, audio output interface passes through the audio output line and is connected with the audio amplifier for play K singing voice outward.
The host computer still is equipped with audio DSP chip, audio DSP chip is connected with MCU chip, effect DSP chip, bluetooth receiving module and audio output circuit respectively for output audio signal to effect DSP chip, bluetooth receiving module mixes, beautifies the processing.
And an earphone amplifier is arranged between the audio DSP chip and the earphone interface and is used for amplifying the power of an output audio signal of the audio DSP chip.
And a microphone preamplifier is arranged between the effect DSP chip and the microphone interface and is used for carrying out preamplifier on a microphone input signal.
The host computer still is equipped with the live broadcast socket, the live broadcast socket with be equipped with between the audio DSP chip and be used for digital analog converter of digital analog conversion, be used for analog digital conversion's analog to digital converter, the live broadcast socket passes through the connecting wire and the earphone interface/Type-C interface connection including but not limited to cell-phone, panel computer for live broadcast or K song is graded.
The power management circuit further comprises a charging interface, wherein the charging interface is a USB interface and is used for connecting an external power supply through a connecting wire to charge a battery in the host or directly supply power to the host.
The microphone interface is at least 1 microphone interface.
The headset interface is at least 1 headset interface.
The control panel is provided with a power key, a Bluetooth music volume adjusting knob, a microphone volume adjusting knob, a reverberation adjusting knob, a delay adjusting knob, a total volume adjusting knob and a power indicator, wherein the power key is used for switching on a power supply, searching and connecting Bluetooth signals, the Bluetooth music volume adjusting knob is used for adjusting the volume of music received by Bluetooth, and the microphone volume adjusting knob is used for adjusting the volume input by a microphone; the reverberation adjusting knob, the delay adjusting knob and the total volume adjusting knob are used for input adjustment of the effect DSP chip, the audio DSP chip and the earphone amplifier.
The host computer still is equipped with and reduces the button, increases the button to and the pilot lamp is listed as, makes the accommodation process visual, can also improve the life of adjustment key.
Preferably, the present invention may also have the following further technical features:
the MCU chip is an MCU chip of STM32F030C8 model number produced by STMicroelectronics, Inc. of Italian semiconductors, I2And C, communication for controlling the effect DSP chip, the audio DSP chip, the Bluetooth receiving module and an adjusting button on the control panel.
The effect DSP chip is an AP3500 chip which is produced by Qingyin electronic technology (Shanghai) limited and is used for reverberation and time delay processing of microphone input signals.
The audio DSP chip is an ADAU1701 chip produced by Adenon semiconductor technology (Shanghai) Inc. (ADI).
The Bluetooth receiving module and the power management circuit are Bluetooth 5.0 chips with the model AK1050 produced by Ankai (Guangzhou) microelectronic technology limited company, are provided with onboard antennas and have a charging management function.
The microphone preamplifier was a model MC33078 chip from Texas Instruments (TI) usa.
The earphone amplifier is a PAM8908 chip which is produced by Diodes corporation (DIOD) in the United states.
The digital-to-analog converter is a CS4344 chip which is produced by American Crystal company.
The analog-to-digital converter is model number PMC1808 chip from Texas Instruments (TI) corporation, usa.
The audio output circuit is an LM358 chip which is manufactured by STMicroelectronics and is available from the company of Italian semiconductors.
The utility model discloses with the beneficial effect of prior art contrast, include:
through the professional circuit design in the host, the microphone input signal and the Bluetooth music are processed into the singing voice which is pleasant to the ears and is listened to the earphone, so that the K singing effect close to a singing room can be achieved;
the combination of a mini microphone and a wired earphone is selected, and a neck hanging rope on the host is matched to place the host at the chest, so that a set of real handheld-free portable Bluetooth karaoke system can be formed, and personal karaoke is easier and more pleasant;
a set of portable live broadcast system can be formed by wired connection with earphone interfaces/Type-C interfaces including but not limited to mobile phones and tablet computers;
through external audio amplifier equipment, can also form one set of sound external playing formula K sings system.
Drawings
FIG. 1 is a block diagram of the components of an embodiment of the present invention;
FIG. 2 is a functional schematic diagram of a first embodiment of the present invention;
FIG. 3 is a functional diagram of a second embodiment of the present invention;
FIG. 4 is a functional diagram of a third embodiment of the present invention;
FIG. 5 is a functional diagram of a fourth embodiment of the present invention;
fig. 6 is a block diagram illustrating a fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following embodiments. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
Detailed description of the invention
A portable Bluetooth K song and live broadcast system as shown in figures 1 and 2 can realize K song and live broadcast by two people at the same time. In the first embodiment, the microphone system includes a hanging-neck sling-type host 20, a first microphone interface 13 connected to the first microphone 30, a second microphone interface 14 connected to the second microphone 31, a first earphone interface 19 connected to the first external earphone 32, a second earphone interface 18 connected to the second external earphone 33, a power management circuit 5 including a USB charging interface 16 for connecting an external power source 35 to charge a battery in the host or directly supply power to the host through a connection line, and a control panel 15, wherein the first microphone 30 and the second microphone 31 are capacitive microphones. The first earphone 32 and the second earphone 33 are wired earphones. The host 20 of hanging neck sling type and little microphone of capacitanc and wired earphone integration make up portable bluetooth K sings system of exempting from to hold. The host 20 is further provided with a hook hole 28 for connecting a hanging neck lifting rope 29, a first mini microphone 30 and a second mini microphone 31 are clamped on a collar or hung on the mouth side through Bluetooth connection, a first wired earphone 32 and a second wired earphone 33 are connected into ears, and the host 20 is placed in front of the chest through the hanging neck lifting rope 29 to form a set of real hand-free karaoke system.
The host 20 is provided with an MCU chip 1 connected with the control panel 15, and an effect DSP chip 2 and a Bluetooth receiving module 4 respectively connected with the MCU chip 1. The MCU chip 1 is an MCU chip of model STM32F030C8 from STMicroelectronics, Inc2C, communication, which is used for controlling the effect DSP chip, the audio DSP chip, the Bluetooth receiving module and the adjusting button on the control panel; the effect DSP chip 2 is an AP3500 chip which is produced by Cyanine electronics technology (Shanghai) Limited and is used for reverberation of microphone input signals,Delay processing; the bluetooth receiving module 4 and the power management circuit 5 are bluetooth 5.0 chips with model AK1050 produced by anky (guangzhou) microelectronics technologies limited, and are provided with onboard antennas with charging management function.
The electronic singing machine is characterized by further comprising an audio output interface 17 connected with the host 20, the host 20 is provided with an audio output circuit 11 connected with the audio output interface 17, the audio output circuit 11 is an LM358 chip which is produced by the American semiconductor corporation of the Italian semiconductor limited and is of a model number, and the audio output interface 17 is connected with the sound box 34 through an audio output line and used for externally playing the K singing voice.
The host 20 is further provided with an audio DSP chip 3, the audio DSP chip 3 is respectively connected with the MCU chip 1, the effect DSP chip 2, the Bluetooth receiving module 4 and the audio output circuit 11, and the audio DSP chip 3 is an ADAU1701 chip which is a product produced by Adenon semiconductor technology (Shanghai) Limited company (ADI) and is used for mixing and beautifying output audio signals of the effect DSP chip 2 and the Bluetooth receiving module 4.
A first earphone amplifier 9 and a second earphone amplifier 10 are arranged between the audio DSP chip 3 and the first earphone interface 19 and the second earphone interface 18, and the first earphone amplifier 9 and the second earphone amplifier 10 are PAM8908 chips, which are manufactured by diode corporation of america (DIOD), and are used for performing power amplification on an output audio signal of the audio DSP chip 3.
The effect DSP chip 2, the first microphone interface 13 and the second microphone interface 14 are provided with a microphone preamplifier 6, and the microphone preamplifier 6 is an MC33078 chip manufactured by Texas instruments and Inc. (TI) of America and is used for amplifying a microphone input signal.
The host 20 is further provided with a live broadcast interface 12, a digital-to-analog converter 7 for digital-to-analog conversion and an analog-to-digital converter 8 for analog-to-digital conversion are arranged between the live broadcast interface 12 and the audio DSP chip 3, the digital-to-analog converter is a CS4344 chip which is a model produced by crystal companies in America, the analog-to-digital converter is a PMC1808 chip which is a model produced by Texas instruments corporation in America, and the live broadcast interface 12 is connected with an earphone interface/Type-C interface including but not limited to a mobile phone 36 and a tablet computer through a connecting line and is used for live broadcast or K song.
The power management circuit 5 further includes a charging interface 16, and the charging interface 16 is a USB interface.
The control panel 15 is provided with a power key 25, a bluetooth music volume adjusting knob 21, a microphone volume adjusting knob 22, a reverberation adjusting knob 23, a delay adjusting knob 24, a total volume adjusting knob 27 and a power indicator lamp 26, wherein the power key 25 is used for switching on a power supply and searching and connecting bluetooth signals, the bluetooth music volume adjusting knob 21 is used for adjusting the volume of music received by bluetooth, and the microphone volume adjusting knob 22 is used for adjusting the volume input by a microphone; the reverberation adjustment knob 23, the delay adjustment knob 24, and the total volume adjustment knob 27 are used for input adjustment of the effect DSP chip 2, the audio DSP chip 3, and the headphone first amplifier 9 and the headphone second amplifier 10.
In the specific implementation mode, a connected mobile phone can realize live broadcast of the mobile phone or support a karaoke scoring system of the mobile phone; connect external audio amplifier, can support the mode that K song sound was played outward.
Detailed description of the invention
The utility model provides a very succinct portable bluetooth K sings and live system as shown in fig. 1, 3, this embodiment two includes host computer 20 to and the first microphone 30 and the first earphone 32 of being connected with host computer 20, use the combination of wired mini microphone with wired earphone, host computer 20 adopts the hanging rope formula of hanging a neck fixed, or with the design of neck ring formula earphone integration, be exactly one set of real portable exempts from to hold K sings system.
In the second embodiment, the mobile phone 36 is connected to realize live broadcast of the mobile phone or support the karaoke scoring of the mobile phone; the connective speakers 34 may support the playback of the K singing voice.
Detailed description of the invention
A portable Bluetooth K song and live broadcast system as shown in figures 1 and 4 replaces a total volume adjusting knob 27, a Bluetooth music volume adjusting knob 21, a microphone volume adjusting knob 22, a reverberation adjusting knob 23 and a time delay adjusting knob 24 with push type regulators and is arranged on the front of a host 20, which is closer to the habitual usage of professional disc-jockeys.
In the third embodiment, the mobile phone 36 can realize live broadcast of the mobile phone or support karaoke scoring of the mobile phone; the connective speakers 34 may support the playback of the K singing voice.
Detailed description of the invention
A portable Bluetooth K song and live broadcast system as shown in figures 1 and 5 replaces a total volume adjusting knob 27, a Bluetooth music volume adjusting knob 21, a microphone volume adjusting knob 22, a reverberation adjusting knob 23 and a delay adjusting knob 24 with corresponding keys and is arranged on the front of a host 20, and then a reduction key 37, an increase key 38 and an indicator light column 39 are added, so that the adjusting process is visualized, and the service life of the adjusting keys is prolonged.
Detailed description of the invention
A portable Bluetooth karaoke system as shown in FIG. 6 comprises a host 20, a first microphone interface 13 connected with a first microphone 30, a second microphone interface 14 connected with a second microphone 31, a first earphone interface 19 connected with an external first earphone 32, a second earphone interface 18 connected with an external second earphone 33, a power management circuit 5 including a USB charging interface 16 for charging a battery in the host by connecting an external power source 35 through a connecting wire or directly supplying power to the host, and a control panel 15, wherein the first microphone 30 and the second microphone 31 are capacitive microphones. The first earphone 32 and the second earphone 33 are wired earphones. The host 20 of hanging neck sling type and little microphone of capacitanc and wired earphone integration make up portable bluetooth K sings system of exempting from to hold. The host 20 is further provided with a hook hole 28 for connecting a hanging neck lifting rope 29, a first mini microphone 30 and a second mini microphone 31 are clamped on a collar or hung on the mouth side through Bluetooth connection, a first wired earphone 32 and a second wired earphone 33 are connected into ears, and the host 20 is placed in front of the chest through the hanging neck lifting rope 29 to form a set of real hand-free karaoke system.
The host 20 is provided with an MCU chip 1 connected with the control panel 15, and an effect DSP chip 2 and a Bluetooth receiving module 4 respectively connected with the MCU chip 1.
Compared with the first embodiment, the host 20 of the fifth embodiment does not have an audio DSP chip, a digital-to-analog converter, an analog-to-digital converter, and an audio output circuit;
compared with the first embodiment, the fifth embodiment has no audio output interface or live interface for connecting with the host 20.
The fifth embodiment is a simplified version of the first embodiment. The method is specially used for popular portable karaoke occasions, the cost is lower, reverberation and time delay are available, stereo output is realized, and the karaoke effect meets the requirement.
The foregoing is a more detailed description of the present invention that is presented in conjunction with the following detailed description, and it is not to be construed as limiting the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, a plurality of substitutions or modifications can be made to the described embodiments without departing from the spirit of the invention, and these substitutions or modifications should be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a portable bluetooth K sings system, including the host computer, and respectively with microphone interface, earphone interface and the control panel that the host computer is connected, the host computer be equipped with power management circuit, with the little the control unit MCU chip that control panel connects, and respectively with effect DSP chip and bluetooth receiving module that the MCU chip is connected, its characterized in that:
the microphone is a capacitance type small-head microphone;
the headset is a wired headset;
the host is a neck sling type host, and the neck sling type host, the capacitance type mini-microphone and the wired earphone are integrated to form a hand-free portable Bluetooth K song system;
the host is also provided with a hook hole.
2. The portable bluetooth karaoke system of claim 1, wherein:
the audio output interface is connected with the host, the host is provided with an audio output circuit connected with the audio output interface, and the audio output interface is connected with the sound box through an audio output line.
3. The portable bluetooth karaoke system of claim 1, wherein:
the host is also provided with an audio DSP chip, and the audio DSP chip is respectively connected with the MCU chip, the effect DSP chip, the Bluetooth receiving module and the audio output circuit.
4. The portable bluetooth karaoke system of claim 3, wherein:
and an earphone amplifier is arranged between the audio DSP chip and the earphone interface.
5. The portable bluetooth karaoke system of claim 1, wherein:
and a microphone preamplifier is arranged between the effect DSP chip and the microphone interface.
6. The portable bluetooth karaoke system of claim 3, wherein:
the host computer still is equipped with the live broadcast socket, live broadcast socket with be equipped with digital analog converter, adc between the audio frequency DSP chip, live broadcast socket pass through the connecting wire and including but not limited to earphone interface/Type-C interface connection of cell-phone, panel computer.
7. The portable bluetooth karaoke system of claim 1, wherein:
the power management circuit further comprises a charging interface, and the charging interface is a USB interface.
8. The portable bluetooth karaoke system of claim 1, wherein:
the microphone interface is at least 1 microphone interface;
the headset interface is at least 1 headset interface.
9. The portable bluetooth karaoke system of claim 1, wherein:
the control panel is provided with a power key, a Bluetooth music volume adjusting knob, a microphone volume adjusting knob, a reverberation adjusting knob, a delay adjusting knob, a total volume adjusting knob and a power indicator lamp.
10. The portable bluetooth karaoke system of claim 1, wherein:
the host is also provided with a reduction key, an increase key and an indicator light column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021097544.1U CN212519399U (en) | 2020-06-15 | 2020-06-15 | Portable Bluetooth karaoke system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021097544.1U CN212519399U (en) | 2020-06-15 | 2020-06-15 | Portable Bluetooth karaoke system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212519399U true CN212519399U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021097544.1U Active CN212519399U (en) | 2020-06-15 | 2020-06-15 | Portable Bluetooth karaoke system |
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|---|---|
| CN (1) | CN212519399U (en) |
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2020
- 2020-06-15 CN CN202021097544.1U patent/CN212519399U/en active Active
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